17.5 Fishfinder introductionWarning: Sonar operation• NEVER operate the sonar with the vessel out ofthe water.• NEVER touch the transducer face when thesonar is powered on.• SWITCH OFF the sonar if divers are likely to bewithin 7.6 m (25 ft) of the transducer.Fishfinder overviewThe fishfinder application provides a detailed view of the fish andseabed under your vessel, enabling you to accurately distinguishbetween different sizes of fish, bottom structure, and underwaterobstacles. The standard fishfinder image is a historical, scrollingbottom graph with range and sonar frequency automaticallyselected by the system.The various functions and features of the fishfinder applicationinclude:• Preset modes for easy optimal operation.• Display modes (Zoom, A-Scope or Bottom Lock).• Adjustable range and zoom.• Finding bottom feeding fish with the bottom lock displaymode.• Clutter and gain options to simplify the image.• Pausing and adjusting the speed of the scrolling image.• Using waypoints to mark a position.• Determining depths and distances of targets.• Fishfinder alarms (fish, depth or water temperature).Fishfinder screenThe fishfinder displays a scrolling image of the seabed, updatingfrom the right as your vessel makes progress.Example fishfinder screenThe fishfinder window includes the following aspects:• The bottom together with any bottom structure such as reefsand shipwrecks etc.• Target images indicating fish.• A status bar noting the frequency and gain settings.• The bottom depth.Fishfinder context menuThe fishfinder application includes a context menu whichprovides fishfinder information and shortcuts to menu items.The context menu provides the data for the position of the cursor:• Depth• RangeThe context menu also provide the following menu items:• Place Waypoint• Place Marker• Move Marker — (only available if a marker has been placed.)• Erase Marker— (only available if a marker has been placed.)• Display mode — (opens the display mode menu.)• Adjust Range— (opens the Range mode menu.)• Range shift— (opens the Range shift menu.)Accessing the context menuYou can access the context menu by following the steps below.1. Non-touchscreen and HybridTouch displays:i. Selecting a location, object or target on-screen andpressing the Ok button.2. HybridTouch and Touch only displays:i. Selecting an object or target on-screen.ii. Selecting and holding on a location on-screen.200 New a Series / New c Series / New e Series
